found an answer:
In the Settings:
last choice, where you can decide your own format:
l,d.m
if(get_field(‘MY-FIELD-NAME’)):
{
$myString = get_field(‘MY-FIELD-NAME’);
$myArray = explode(‘,’, $myString);
echo ‘<p class=”date_weekday”>’ . $myArray[0] . ‘</p>’;
echo ‘<p class=”date_date”>’ . $myArray[1] . ‘</p>’;
}
endif;
l = weekday -> first array ([0])
d.m = day and Month -> second array ([1])